The basic lithostratigraphic unit is a mappable unit of strata with distinctive upper and lower boundaries called a(n)
____.
a. series
b. extrusive
c. formation
d. rock
e. biozone
c
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Which of the following statements best describes the role of neutrons in the nucleus?
A. The neutrons stabilize the nucleus by balancing charge. B. The neutrons stabilize the nucleus by attracting other nucleons. C. The neutrons stabilize the nucleus by forming bonds with other neutrons. D. The neutrons stabilize the nucleus by adding mass. E. The neutrons stabilize the nucleus by attracting protons.
At which point or points does the current flow fastest in the center of the channel?
A) A
B) B
C) C
D) D
What is the approximate population of Australia?
A) 5 million B) 13 million C) 45 million D) 23 million E) 200 million
At its maximum extent, continental glacial ice in North America extended as far south as ________
A) the Gulf of Mexico B) Florida C) Minnesota D) The Ohio River E) Montana